Thousands of people took to the streets of the Belgian capital to join a march “against terror and hatred.” The rally was organized in response to attacks in Brussels in March that killed 32 people and injured over 300.

Police say around 7,000 people marched across the city for the demonstration dubbed “All together”, local media reported. The organizers, however, expected at least 15,000 participants.

A number of the relatives of the victims of the Brussels bombings and those who survived the attacks took part in the rally, the RTBF broadcaster said, adding that among the participants are representatives of different religions.

In Molenbeek, a predominantly migrant area in Brussels, referred to as an “Islamist hotspot”, around 1,000 people gathered for the rally. “Solidarity with families,” said one of the banners held by the demonstrators.

“The terrorists were known to the police. We need an effective fight against terrorism to live in security, but it must go through targeted surveillance. We will not abandon the fundamental freedoms for an illusion of security,” he said, as cited by RTBF.